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GB201306633D0 - Biaising circuitry and method thereof - Google Patents

Biaising circuitry and method thereof

Info

Publication number
GB201306633D0
GB201306633D0 GBGB1306633.7A GB201306633A GB201306633D0 GB 201306633 D0 GB201306633 D0 GB 201306633D0 GB 201306633 A GB201306633 A GB 201306633A GB 201306633 D0 GB201306633 D0 GB 201306633D0
Authority
GB
United Kingdom
Prior art keywords
biaising
circuitry
biaising circuitry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1306633.7A
Other versions
GB2512918B (en
GB2512918A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic International UK Ltd
Original Assignee
Wolfson Microelectronics PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB1306633.7A priority Critical patent/GB2512918B/en
Application filed by Wolfson Microelectronics PLC filed Critical Wolfson Microelectronics PLC
Priority to GB1621617.8A priority patent/GB2542965B/en
Priority to GB1605995.8A priority patent/GB2535354B/en
Publication of GB201306633D0 publication Critical patent/GB201306633D0/en
Priority to US14/244,075 priority patent/US9148722B2/en
Publication of GB2512918A publication Critical patent/GB2512918A/en
Priority to US14/864,619 priority patent/US9490765B2/en
Application granted granted Critical
Publication of GB2512918B publication Critical patent/GB2512918B/en
Priority to US15/342,232 priority patent/US9661434B2/en
Priority to US15/591,808 priority patent/US9872103B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348—Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
GB1306633.7A 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof Active GB2512918B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1621617.8A GB2542965B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof
GB1605995.8A GB2535354B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof
GB1306633.7A GB2512918B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof
US14/244,075 US9148722B2 (en) 2013-04-11 2014-04-03 Microphone biasing circuitry and method thereof
US14/864,619 US9490765B2 (en) 2013-04-11 2015-09-24 Microphone biasing circuitry and method thereof
US15/342,232 US9661434B2 (en) 2013-04-11 2016-11-03 Microphone biasing circuitry and method thereof
US15/591,808 US9872103B2 (en) 2013-04-11 2017-05-10 Microphone biasing circuitry and method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1306633.7A GB2512918B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof

Publications (3)

Publication Number Publication Date
GB201306633D0 true GB201306633D0 (en) 2013-05-29
GB2512918A GB2512918A (en) 2014-10-15
GB2512918B GB2512918B (en) 2016-09-14

Family

ID=48537128

Family Applications (3)

Application Number Title Priority Date Filing Date
GB1621617.8A Active GB2542965B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof
GB1306633.7A Active GB2512918B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof
GB1605995.8A Active GB2535354B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1621617.8A Active GB2542965B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1605995.8A Active GB2535354B (en) 2013-04-11 2013-04-11 Microphone biasing circuitry and method thereof

Country Status (2)

Country Link
US (4) US9148722B2 (en)
GB (3) GB2542965B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113704146A (en) * 2015-02-25 2021-11-26 思睿逻辑国际半导体有限公司 Connector for audio data transmission

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8861743B2 (en) * 2008-05-30 2014-10-14 Apple Inc. Headset microphone type detect
CN105684303A (en) * 2013-08-29 2016-06-15 爱立信(中国)通信有限公司 Driver circuit and associated power amplifier assembly, radio base station and method
KR20150045638A (en) * 2013-10-21 2015-04-29 삼성전자주식회사 Earjack and electronic device having the same
WO2015166482A1 (en) * 2014-05-01 2015-11-05 Bugatone Ltd. Methods and devices for operating an audio processing integrated circuit to record an audio signal via a headphone port
KR20170007451A (en) 2014-05-20 2017-01-18 부가톤 엘티디. Aural measurements from earphone output speakers
KR101601179B1 (en) * 2014-10-20 2016-03-08 현대자동차 주식회사 Analogue signal processing circuit for microphone
US10305671B2 (en) * 2015-05-21 2019-05-28 Cirrus Logic, Inc. Synchronous differential signaling protocol
US10141902B1 (en) * 2015-07-08 2018-11-27 Marvell World Trade Ltd. Apparatus for and method of generating output signal based on detected load resistance value
WO2017019069A1 (en) * 2015-07-29 2017-02-02 Hewlett-Packard Development Company, L.P. Analog device connection
KR101724506B1 (en) * 2016-05-11 2017-04-07 현대자동차 주식회사 High sensitivity microphone
DE102016116715B4 (en) 2016-09-07 2024-06-20 Sennheiser Electronic Gmbh & Co. Kg Wireless microphone receiver unit
TWI633794B (en) * 2017-01-13 2018-08-21 茂達電子股份有限公司 Pop-free headset detection circuit
US10448153B2 (en) 2017-06-20 2019-10-15 Cisco Technology, Inc. Interfacing a microphone or headset with multiple computing devices
GB2567903A (en) * 2017-10-27 2019-05-01 Cirrus Logic Int Semiconductor Ltd Socket monitoring
TWI690219B (en) * 2018-08-28 2020-04-01 瑞昱半導體股份有限公司 Sound recording circuit
TWI686090B (en) * 2018-09-26 2020-02-21 新唐科技股份有限公司 Biasing circuit
CN118338196B (en) * 2024-04-11 2024-11-29 广州市行动者科技有限责任公司 A sound-generating and sound-pickup dual-purpose circuit for speaker units

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010520728A (en) * 2007-03-05 2010-06-10 ジートロニクス・インコーポレーテッド Microphone module with small footprint and signal processing function
DE102009000950A1 (en) * 2009-02-02 2010-08-05 Robert Bosch Gmbh Component with a micromechanical microphone structure and method for operating such a microphone component
KR101785338B1 (en) * 2011-02-07 2017-10-16 삼성전자주식회사 Method and apparatus for reducing current consumption of mobile terminal
US9407256B2 (en) * 2011-05-30 2016-08-02 Sony Corporation Reducing a disturbance on a signal path of a semiconductor switch
KR101937839B1 (en) * 2012-08-29 2019-04-10 삼성전자 주식회사 Ear-phone Connecting Interface and Portable Device including the same, and Operating Method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113704146A (en) * 2015-02-25 2021-11-26 思睿逻辑国际半导体有限公司 Connector for audio data transmission

Also Published As

Publication number Publication date
US20140307910A1 (en) 2014-10-16
GB201621617D0 (en) 2017-02-01
US9148722B2 (en) 2015-09-29
GB2542965A (en) 2017-04-05
US9490765B2 (en) 2016-11-08
US9872103B2 (en) 2018-01-16
US20170078814A1 (en) 2017-03-16
GB2535354B (en) 2017-02-08
GB2512918B (en) 2016-09-14
GB2542965B (en) 2017-08-09
GB2535354A (en) 2016-08-17
US9661434B2 (en) 2017-05-23
GB2512918A (en) 2014-10-15
US20160056786A1 (en) 2016-02-25
US20170245052A1 (en) 2017-08-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20150820 AND 20150826

PCOR Correction of filing an application or granting a patent

Free format text: THE GRANT OF PATENT GB1306633.7 ANNOUNCED IN THE PATENTS & DESIGNS JOURNAL 6622 - OPI DATE - 20.04.2016 WAS INADVERTENT AND HAS BEEN RESCINDED UNDER R107(3)(A). THE PATENT WILL BE RE-GRANTED IN DUE COURSE.